The Effectiveness of Over the Counter Hearing Products for Middle-Aged Adults
Public ClinicalTrials.gov record NCT03511417. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Aging and Speech Perception in Complex Listening Environments
Study identification
- NCT ID
- NCT03511417
- Recruitment status
- Withdrawn
- Study type
- Interventional
- Phase
- Not applicable
- Lead sponsor
- University of Massachusetts, Amherst
- Other
- Enrollment
- Not listed
Conditions and interventions
Conditions
Interventions
- over-the-counter hearing device Device
Device
Eligibility (public fields only)
- Age range
- 40 Years to 64 Years
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Oct 15, 2018
- Primary completion
- Jan 16, 2020
- Completion
- Jan 16, 2020
- Last update posted
- Oct 19, 2021
2018 – 2020
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| University of Massachusetts Amherst | Amherst | Massachusetts | 01003 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT03511417, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Oct 19, 2021 · Synced Jul 23, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT03511417 live on ClinicalTrials.gov.